Description of problem:

Horizon search filters for flavors, volumes and snapshots can't find the
object if it is not in the same page, if we have volume named vol-31 in
the second page the search filter doesn't find it for the specifed object
types.

If we do the same for images it works as expected.

Version-Release number of selected component (if applicable):
16.2 / 17.1

How reproducible:
Always

Steps to Reproduce:

1. for i in $(seq 5 26); do nova flavor-create mini-$i $i 256 1 2; done
2. for i in $(seq 27 46); do nova flavor-create other-$i $i 256 1 2; done

Horizon search filter WILL NOT find flavors named other-* if they are
in the second page.

1. for i in $(seq 1 20); do openstack image create --file cirros.img \
   -container-format bare --disk-format qcow2 cirros$i; done

1. for i in $(seq 1 20); do openstack image create --file cirros.img \
   -container-format bare --disk-format qcow2 other$i; done

Filter WILL FIND images named other-* even if they are in the next page

In this example the flavors other-* are in the other page, the search filter is not able
to find them

Actual results:
If objects are in the second page the filter doesn't find it.

Expected results:
Find objects ans if happens with images.